Sometimes the first symptom is a droopy eyelid. Other times it's far worse: the eyeball itself freezes in its socket. The muscles that move the eye literally run out of energy. As the disorder progresses, a constellation of problems arise, including a type of epilepsy, stroke-like attacks, heart and kidney problems, degeneration of the retina and blindness, and general muscular weakness. The strange thing about this group of genetic disorders is that they are only inherited from the mother, never from the father, and equally affect boys and girls. So-called sex-linked diseases such as hemophil...
